Indicating and recording apparatus



A. CJOHNSON. lNDlCATlNG AND RECORDING APPARATUS.

APPLlCATlON FILED nzc. 6.19181 P t t d J ly 1922 6 SHEETS-SHEET &

' A. c. JOHNSON.

\NDiQATlNG AND' RECORMNG APPARATUS.

APPLICATION FILED DEC. 6, I918.

Patented July 11, 1922.

6 SHEETSSHEET 2.

A.'C. JOHNSON.

INDICATING AN D RECORDING APPARATUS.

APPLICATION FILED DEC. 6 I9I8.- 1,422,207.

Patented July 11, 1922.

I 6 SHEETS-*SHEET 3.

PIIIIIIIIIIII" refill. Iln I! {a II.FIIIII.VIO III 'I II -II 'IIIIIIIIIII 'III-I VIII! III/II VII/III/IIII IIIIIIIIII I/IIIIIIII A. C. JOHNSON.

mmcnma AND RECORDING APPARATUS.

' APPUCATION FILED DEC- 6, 1918. 1,422,207, Patented July 11, 1922.

6 SHEETS-SHEET 4.

\ x N I 5 H I Q 1/ J 55 3 Q A. C. JOHNSON. INDICATING AND RECORDING APPARATUS.

APPUCATION FILED DEC. 6, 1918.

Patented July 11, 1922.

6 SHEETS-SHEET 5.

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5; i A -Z d.

A. c. JOHNSON.

INDICATING AND RECORDING APPARATUS. APPLlATION FILED DC .6, 1918.

GSHEEIS-SHEET 6.

UNITED STATES PATENT "OFFICE- .A USTIN C. JOHNSON, OF CHICAQO, ILLINOIS, ASSIGNOR TO PRODUCTION METER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

INDICATI'NG AND RECORDING APPARATUS.

Illinois, have invented certain new and, use-- iul Improvements in Indicating and Recording Apparatuaof which theo specification.

My invention relates to an apparatus for sired, makin I v V actual operating period of a machine, when performing one or more complete operations or a series of intermittent operations. The lnvention relates, more particularly, to certain improvements in an apparatusfof the above character disclosed in my Patent No; 1,283,789. r

In order to produce reliable results Wlthj' an indicatingand recording apparatus it is essentialthat the various operating parts of thexapparat'us operate with perfect accuracy.

This is particularly true when the apparatus is employed to give a visual indication or make a permanent record of another ma chine, the active operating periods of which are frequent and of short duration, such for example, as the operation of a printing press. Such indicating and recording devices are intended to enable the superintending voilicer of a factory to'keep an accurate account of the operations of a large number of machines, and to ascertain at a glance the total timecovering' a plurality of active opera- It is also essential that each of the indicat! ing units be capable of being readily removed from the apparatus without inter.

fering with the operation of the other units.

This removable feature is importantfwhen' it is desired to repair one of the units or when it is desired to separately indicate the amount of time spent by twoorinore work; men who have worked on thesame machine at difierent times durin is also desirable 'that all the same day. It

the end of each working period.

Spcciflcation of Letters Patent.

llowing is 8 driving mechanism. j of the indicating units-be capable of being set .back tozeroat- Patented July 11, 1922.

Application filed December 6, 1918. Serial No. 265,544.

proved indicating and recording apparatus which will meetthe above requirements of an apparatus of this character more satisfactorythan any of the other indicating and recording machines which have heretofore jthis sort, as will be apparent from the follow1n-g specification.

giving a visual indicatiom'andalso if de-# a permanent record of the The customary method of maintaining a high productive efiiciency of any particular machine in a factory is to determine the time required by the average workman to I I finish the article or partthereof whichis made by the machine in question. Such period should include the time required for the machine to completeits part of the work and also the time allowed for the machine operator to handle the material. My invent on contemplates a novel apparatus which Wlll accurately record and indicate the total time required for a. machine to perform a connection the invention, more specifically, y

contemplates the-provision of an electrical operated counting device which is actuated only during the said active. period of the machine. tions of any particular machine. It is there- The invention consists in the novel arrangements, construction and combinations of parts and .devices hereinafter described and claimed for carrying out the above stated objects, and such other objects as may .be apparent fromthe following detailed description.

-Fig. 2 1s a sectionalwiew takenon'line The invention is illustrated in a preferred-- embodiment in the accompanyingdrawings wherein like charactersof reference designate likeparts, and wherein: Y i g I Y .L Fig. lis afront viewfof an indicating and grecordin "machine," Constructed ance wit ray-inventioni in accord} 2'+ 2.ofFig. 1, illustratin the connections.

between one of the indicating units and the Fig. 2 isa magnined view of the per portion of the preferred form of mar mg stylus employed inmy-linvention;

Fig. 3i! aside view in elevation of one of the indicating units, one of the cover plates of the same being removed so as tc illustrate the arrangement and construction of th operating mechanism;

Fig. 4 is an enlarged view in section taken' online44of Fig. 3;

Fig. 5 is a side view of a combined solenoid and visual indicating minute wheel forming a part of the unit shown in Fig. 3;

Fig. 6 is an enlarged view illustrating the gear connection between the minute wheeland 7.,

so Fig. 18 is a section taken Figs. 9 and 10 are sectional views taken on lines 9-9 and 10--10 respectively of Fi 8; Fig. 11 is a fragmentary side view 0 the upper portion of the unit shown in Fig. 3, showing the position of the hour Wheel. This figure is made on a larger scale than Fig. 3, and shown partly in section to clearly illustrate the stop adapted to limit the reverse movement of the hour wheel when the unit is set back to zero;

Fig. 12 is a magnified view in section of the lower portion of the indicating unit, the view being taken on line 12-12 of Fig. 3;

Fig. 13 is a detail face view of the hour indicating wheel shown in Figs. 3, 4 and 11;

Fig. 14 is a view in perspective of a mutilated pinion employed to effect an intermittent driving connection between the minute wheel and the hour indicatin wheel.

Fig. 15 is a vertical sectiona view of an electromagnetically operated counting device forming a part of my preferred indicating and record ng apparatus F 1g. 16 IS a sectional view taken on line 1616 of Fig. 15, looking in the direction indicated by the arrows;

Fig.1? is a plan view with certain parts: in section of a circuit making and breaking device which, when operated, closes the cir cuit through the electro-magnets of the in.- dicating unit and the counting device;

17; and p 1g. 19 illustrates the electric circuits-controll ng the'operation of the various arts of my indicating apparatus, and also lllustrates, diagrammatically the conneotion.between the circuit closing device and the 'roller elevating mechanism of a printing press, the dicated.

In the drawings Ihave shown my preferred construction ofappara'tusfor giving a visual indication and making aermanent recordof the productiveperiods of operation of a plurality of machines. Thi ap performance of which is being in-' 'paratus is mounted on a basedesignated' at 25 and consists generally of a chart 26 on which the permanent record is made, and'a plurality of visual indicating units 27 which 7 give a visual indication of the productive 7 period of operation of the machine whose performance is being recorded. The chart 26 extends around a lower drum 28 journaled in supporting standards 9.9, and an upper drum (not shown} but which may be 7 identical in construction with the drum 28. 3O designates a roller over which'the chart passes and is adapted to provide a solid backing for the chart at the mint where the marking element engages t e chart. The 3 chart is driven in the direction indicated by the feathered arrows in'Figs. 1 and 2 by a suitable motor whichis shown diagrammatically at 31 as being a clock movement. This a gear 39 which is secured to the drum shaft 9 28*. The lower drum 28 and the upper drum reviously referred to are preferably rotatedhn unison by means of a link belt conneotion consisting of chains 40 which connect a pair of sprockets 11 on the drum shaft 28" 1 at opposite ends of the drum 28 with a similar pair of sprockets associated in substan tially the same manner with the upper drum. The chains 41) also fit into grooves 42st each end of the roller 30 and. frictionally 1 engage the same so as to" impart arotary movement to, the T rollerj 43 designates a metal plate over which the chart passes and" ,is'supportedby suitable brackets 44- secured to extensions 45 of the standard 29. It will 11 beobviousxthat,if'desired. this plate could be extended downward so as to. providethe desiredzbacking for the chart instead'of the. roller 30." The permanent record of the perfori'nance of any particular machine is; on line 18-118 of recorded on the chart by means of the mark -ers 46 which,.during the operation of the.

apparatus, are preferably in constant engagement with the chart. Such constant contact of the markers with the chart sub 1 jects the-clock mechanism 31 to a substantiall even. load and thus insures a more steady continuous movement of the chart than would be obtained if the markers were moved into and out of contact with the chart 1 for each active operationof the machine arm formed at its lower end with a stud 48 which provides the pivotal axis for the marker arm. A metal strip 49 is secured to the lower edge of the plate -17 and is provided with bores which provide a wide bearing for the stud 48. .A bifurcated stud 50 is secured in a boss 5]. at the upper end of the arm 46 and carries a V-edged marking roller 52. The portion of the stud 50 which fits in the bore of the boss5l is preferably reduced in diameterto provide a shoulder which rests against the face of the said boss. This expedient makes it unnecessary to adjust" any of the said studs longitudinally in order to secure a uniform pressure against the chart 26 by providing a uniform tension on the marking arm 46.

When the roller 52 is in contact with the chart, the marking arm 46 is preferably sprung a slight distance away from the plate 47 so as to eliminate any friction between the said plate and arm. and also exert a spring pressure against the chart. The chart is preferably providedwith a plural- ?55 ity of horizontal lines 54 indicating the minutes of each hour, and with wide vertical lines 55 (Fig. 1). The markers, when not in recording position, bear against thechart on one of the vertical lines 55. As soon as anyone of themdicating un1ts'27 1s energized, as will be hereinafter described, the marker is rocked on its pivot 48 a distance sufficient tomove the roller 52 off the vertical line 55 and into recording position, as indicat'ed at A (Fig. 1.) The edge of the roller being arranged transverse to the travel of the chart, minimizes the energy required to operate the marker, and at the sametime will make a prominent unbroken line to.in-' 4c dicate each-active period ofthemachine;

whose operation is being recorded. 1 The'vertical record line A in Fig. 1 indicates that the marker B has been in recording position from 7 :30 a. m. to 8 :30 a. m. "When the performance of a machine'is recorded, the operation .of which is frequent and of short duration, several minutes each for example, the record line would be broken as indicated at C to show .the idle periods of the machine.

50 If the'active and inactive periods of the ma- --ch1ne are numerous. such for example as one second each, the record would show a."

plurality of lines as indi ated at The roller 52 being formed with a sharp" edge,

55 will record such operations clearly.

The visual indicators are supported between the end castings 33-44 on the movable supporting table which is slidably mounted on guide rods 57 journaled in bearings 58 30 mounted on the base 25 and is formed with depending forks 59 at opposite ends. These forks receive an eccentric rod 60 mounted in bearings 61 and provided with an operating handle 62. The indicating units are firmly secured in place by means of a feather 63 formed on the bottom of each of the units and fits into grooves 63 in the top surface of. the table A screw 64 is arranged in a slot 65 at the front edge of the table'35 and has a threaded engagement-with the bottom of the unit whereby the said unit.

maybe clamped tightly to the table. By turning the crank 62 the table 3.5 may be moved to and from the chart so as to move the markers 46 into or out of contact with the chart, as desired, and also engage or disengage the driving connectionbetween the 1 plnion 37 and the drum gear 39. In this the clock mechanism 31 operativelyronnecb ed wlth the driving shaft 32, instead of be connection, it will be noted that by having .80

ing directly connected, in the customary manner, to the drum 28, the chart may be moved rapidly, to any position corresponding to the time indicated by the clock 31 without affecting the operation of the clock mechanism, when the driving connection be hereinafter apparent, permits the visual indicators to be used if desired without making a permanent record on the chart.

Each visual indicating unit 27 is housed in a thin casing 66 (Figs. 3 and 4), of preferably nonmagnetic metal. The ,casingof non-magnetic metal'makes it possible to ar- 1 range the units closely against each other so as to provide a compact apparatus withoneunit being affected by the operation of an adjacent .'unit. The xvisual-indicating mechanism ofeach unit consists of a minute I wheel 67 adapted to rotate continuously dur--v between the chart and clock mechanism is disengaged. This arrangement also, as will. i I

fout danger of the magnetizable elementsof ing the active period of the machine being .:indicated by the, unit in question, and an hour wheel68,"formed with graduations on its'Iprimeteni'and operative'ly connected with the minute wheel 67 so as to rotate the v amplitude of one 'g aduation'thereon for each complete revolution of the minute wheel.

. The minute wheel is rotated by a train of gears consisting of a gear 69 secured to the shaft 32, and a gear 70in the unit which meshes with the gear 69 and is continuously driven thereby, The gear 70 is preferably made of steel or other magnetizable metal,

' constitute the magnetic poles of the electromagnet 71. 77 designates a contact member. preferably a metal band formed with a peripheral groove 78. This contact member is fitted over the periphery 76 of the minute wheel and is insulated therefrom by means of mica strips 79, or other suitable insulating material. One end of the wire forming the magnetic coil 71 is grounded to the steel portion of the minute wheel, as indicated at 80, and the other end passes through an opening 81 in the perihpery 76 and is secured to the contact ring 77. An electric current is transmitted from the wire 82 (Fig. 3) to the contact ring 77 through a spring contact member, designated generall at 83. This contact member consists pre erably of a relatively thin spring member,

8 1 and a relatively stiff spring 85. Both of these springs are clamped together and secured to the frame- 86 between insulating strips 87. The free end of the thinner spring 84 is formed with a depression 88 in which is retained a body of a graphite substance The graphite substance is preferably circular in cross-section 9) so as to fit the groove 78 of the contact ring 77. The graphite 89 may be firmly retained in the depression 88 of the contact spring 84: by any suitable means, such as by providing an overhanging ledge 90' of solder. The heavy spring 85 bears against the free end of the spring 84 and holds the same firmly against the ring 77. The graphite 89 provides a very desirable contact,'and also serves as a metallic lubricant to reduce the friction and wear at the point of contact.

In order to insure perfect accuracy and reliability in the operation of the visual indicating unit, the continuously driven gear is normally held against the periphery 76 01 the minute wheel b means of a triangular spring 90 which is interposed between the said gear and the casing 66 (Figs. 3 and 4). This triangular spring is very light, and therefore will not cause a sufficient frictional engagement between the gear 70 and minute wheel to cause any accidental rotation of the latter. but merely exerts a force suiiicient to take up any lost motion between the gear teeth of the gears 69 and 70. Any tendency, however, which this frictional engagement might have to accidentally rotate the minute wheel is offset by the force exerted by the spring contact member 83 against the contact ring 77 There is preferably a slight clearance between the core of the magnet 71 and the gear 70, so that there will be no tendency of the said gear to adhere to the minute wheel after the magnet is tie-energized.

The dials 91 and 92 of the minute and hour wheels, respectively, are exposed to view through openings 93 and 94; (Figs'l, 3 and 11). The hour wheel is operated the amplitude of one graduation for each complete revolution of the minute wheel by a ireneva movement as follows: The perimeter 95 of the minute wheel 67 is formed with a notch 96 and is provided with a pair of small prolections 97 at opposite sides of the notch. 1 small pinion 98 is interposed between the hour wheel 68 and the minute wheel 67. This inion is mounted on a stud 99 and is forme with our full width teeth 100 and four mutilated teeth 101. The perimeter 95 of the minute wheel, when 16 tated slides on a pair of the full width teeth 100 until the projection 97 contacts one of the mutilated teeth and causes one of the full width teeth to enter the notch 96 so as to give the pinion 98 a one-quarter turn. All eight teeth ofthepinion mesh with gear teeth 102 formed on the inner face of the hour wheel, so that when the pinion is given a one-quarter revolution by the minute wheel, it moves the hour wheel the amplitude of one graduation on the dial so as to bring the next succeeding figure on said dial in a position opposite the opening 94 in the easing of the unit.

The marking element 16 is moved into its recording position on the chart, as indicated at A in Fig. 1 by the energization of an electro-magnet 108 secured in the lower portion of the unit casing 66. The armature of the magnet 103 is designated at 104 (Figs. 3 and 4), and is preferably secured to a shaft 105 which is formed at one end with a reduced upturned crank portion 106. This reduced portion of the shaft 105 preferably fits into a fork 107 secured to the marking arm 46. When the armature 104 is attracted by the energization of the magnet 108, the arm 106 being connected with the marker will cause the marker to move to the left off the line 55 (Fig. 1) into recording position. As soon as the magnet is deenergized. the spring 108 will force the armature 104 away from the poles of the magnet and in this way return the marker 16 to its inoperative position.

109 designates an electric motor which is adapted to operate the machine whose performance is indicated and 111 designates the circuit wire leading from the knife switch 112 which effects an electrical connection between the line wire 113 with the motor 109. 114 desi nates a relay which is actuated by the c osingof the circuit 111, to close a switch 115 in the negative wire 116 of an electric circuit connecting a generator 117 with the electro-magnet 71 and, 103 of the visual indicatin unit 27 and to an electro-magnet adapted to operate a counting mechanism 119, the structure of which is electric current of low voltage. -By employing an electric current of low voltage it is practical to operate the indicating and recording mechanism with a grounded circuit.

=The electric current is conducted from the generator 117 through positive wires 118.

- 118. and is introduced into the magnets 103 l 16 and 71 of the unit through spring contact clips 119, 120, which fit over opposite sides of the contactstud 121 ('Figs. 2 and 19).

The'contact clips 119-120. are mounted on i an insulating block carried on the table 35. 20 The outer end of the contact spring 119 is bent downwardly, as indicated at 119", to provide a contact finger ada ted to engage a rod 123 which is mounted in brackets 124 andextends the full length of the table and constitutes the ground connection for the negative wire 116 of the operating cir- Imit; a [The operating circuit of the 'electro-magnets 71 and 103 consistin of wires 11'8---118 30 and 116- 116 a re closed 'by aswitch, preferably of the form shown in Figs. 17 and 18 of the drawings, and as indicated at 72 in Fig. 19. This switchfis connected to the machine, the performance of which is to be recorded, so that the circuit throughwires 118-118 and 116116, will be closed at 'the beginning of the active operation of the machine, and will be broken as soon as'such 1 active operation ceases. The switch 72 pref- ;erahly consists of a casing having a fixed T-shaped. contact member 125 to which the wire 118? leading to the unit 27 is connected, and with a pair of spring contacts 126 127, the former of which connects with the positive wire 118 .leading from. the generator 117. and the latter with the wire 912-8 leading to the magnetically operated counting device designated. generally at 122 in Fig. 19. A ground wire 116? leading I with the negative wire 116-,"completes the operating circuit of the" indicating and recording mechanism- The operating circuit visclosed by means of arms 130 and 131 which'are independently "movable to bring-- either of the spring contact members 126, 127 respectively, into engagement with the T-shaped contact 125. .The arm 130 is from the counting device 122 and connecting ofthe indicating and recording mechanism.

cured to a sleeve 132 which extends through a suitable bearing'133 in the'casing, and carries at-itsouter endanoperating crank 134- i In the drawings I- have shown the crank134 of the-switch connected'to'a trip mechanism ofa printing press, though it will be obvi ous that it could'be connected up in any suitable manner with other forms of machines so as to close the circuit during the worln'ng. period of the operation of such machines, and open the circuit when the machine is not in active 0 eration.

The printing press s own inv Fig. 19 of the drawings is shown diagrammatically as be-- ing of the type in which the roller 135 is lowered so as to come into contact with the type plates 136 when the press is in active operation, and which is. automatically raised to the dotted line position shown in this figure so as not to come into contact with the type plates during their return stroke. The

press illustrated is intended to be put into operation by the release of the trip 137 which is connected to the boxing of the roller 135 through a series of bell cranks 138,139, 140, and connecting rods 141. A rod 142 connects the trip mechanism of the printing press with the crank 134 so as to close the contact members 125, 126 and energize the magnets 71 and 103 of the indicating unit so as to clutch the continuously driven gear with the minute wheel67 and to also attract the armature 104 of the magnet 103 so as to swing the marker 46 off the heavy line 55 on the chart 26 into recording position .on said chart. It will be understood that the energization of the said magnets continues its wered position as indicated in Fig. 19, and are de-energized throughout the entire time that the said roller is in the elevated position. i

only during the time that the roller 135 is in The counting device 122, forming apart of a my indicating and recording apparatus automatically records the total number of active operations performed of the printing press, for example, during th netically operated counting mechanism-- 122 with the switch 72, so that this mechanism 106 e period indicated by the indicating unit 27., In order to accom-f *ductiveoperating period recorded ;by the,

unit '27. close the contacts 127 and 125 control ing the The contact arm 131 ads ted to r circuit through the countin device 1221s se a cured to a-shaft 142 secnre in a bearing-143 of the casing of the circuit closingf-device, fl

extends through the sleeve 132, and-is formed with an operatingcrank 144 which is pref-Q1 erably connected with the mechanism for 2111- the-roller 129 is shown. diagrammatically in Fig. :19 as consisting of crank1'45'and bell crank 146 operatively connected by means of will operate torecord one complete active operation of the machine during "each pro-' Springs 152 hold connecting rod 147. The operating lever 144 of the circuit closing device is connected to the crank 1 15 by a connecting rod 118. V

In the construction above described, it will be noted that in order to close the circuit through either the indicating unit 27 or the counting mechanism 122, both contacts 126 and 127 must be engaged with the T-shaped contact 125.

149 designates a button of insulating material secured to a bolt 150 which slidably extends through the suitable apertures 151 in the outer ends of the arms- 130, 131.

the bolts 150 in their extendedposition, as indicated in Fig. '18. These bolts having a sliding connection with the arms 130,131 permit the downward rocking movement of these arms after the said contact members 120,127 have been moved to their closed position.

The counting mechanism designated generally at 122 consists of a counting mechanism 153 which may be of an off the well known types nowin use, and it is therefore unnecessary to illustrate this mechanism. It will be understood that the one-half revolution of the shaft 154 of this mechanism operates to record one operation on the dial wheels 155. The necessary movement of the shaft 154 is preferably-producedby providing said shaft with a toothed segment 156 which is operatively connected with the rack portion 157 of the armature 158 of the electro-magnet 159. When both of the contact members 126. 1.27 are closed. the electric current passes through wire 118 to the indicating unit and through wire 128 to the counting device 122 so as to operate both of these devices simultaneously. The energization of the field magnet 159 and the armature magnet 158 be rotated toward the magnetic poles 160. 161. the operating shaft 154 of the counting mechanism to be rotated a sufiicient distance to operate the counting mechanism. As soon as the magnets 158-159 are tie-energized, the armature is returned to the position shown in Fig. 16 by the action ot-a spring 158. This spring has one of its ends secured to the armature and is secured at its other end to a stud 158 which extends through the casing 122 and is provided at its outer end with a knob 158 with which the stud may be rotated to obtain proper tension of the spring. The stud may be held in it's desiredv position by means of a lock nut designated 158".

162 designates a pad which the upper end of the armature is adapted to engage to limit its movement and prevent the core 158- thereof from coming into actual contact with the poles 160. 161. The rack 157 is preferably formed on a plate 162 of nonmagnetic metal which is provided with an of the counting device causes thearmature to This movement Wlll cause opening 163 which surrounds the magnetic pole 160 of the magnet 159.

I preferably employ one counting device for each of the visual indicating units 27 and these devices may obviously be incorporated with the apparatus illustrated in Fig. 1, so as to assist the superintendent, for example, to keep an accurate record ot the number of productiveperiods indicated by the visual indicatingunit; or if desired, they may be placed near the machine, the operation of which is being'recorded, so as to ad vise theioperator of the machine whether or not he is reducing the necessary amount of work wit iin'the prescribed period. '30 In order to set all the indicating units back to zero, the table 35 is moved out-. wardly by operating the eccentric 60. This operation brings the extension 119 of the contact spring 119 against the grounded contact 123, and also disengages the gear 37 from the gear 39 on the drum 28; the contacts 119 being engaged with the ground contact 123, closes the circuit through the magnet 71 so as to clutch the gear 7 0 against the periphery of the minute wheel 67. The gear37 is then turned backwardly so as to reverse the movement of the minute and hourwheels 6 7, 68. This reverse movement is facilitated by the crank'165 which is loosely mounted on the shaft 38 and is provided with notches 166 adapted to engage the stud 167 extending through the shaft 38. \Vhen the hour wheel and minute wheel of any particular unit of the apparatus have been returned to zero, a stud 168 on the periphery of the hour wheel 68 comes against the downwardly bent portion 169 otthe casing adjacent the opening 94, so asto prevent any furtherrearward movement of either 105 the minute wheel 67 or the hour wheel 68.

from slipping when the said minute and 11o hour wheels of any particular unit have been returned to zero while the rearward movement of another unit continues.

While I have illustrated my invention in a certain preferred embodiment and shown us its application in connection with a printing press it will be understood that I do not limit myself to the exact structure shown and described or to its use in connection with the particular type of machine with which it is illustrated. I therefore contemplate a-ll modifications and uses to which the apparatus may be applied as will come within the scope of the appended claims.

I claim:

1. In apparatus of the character described. the combination with indicating mechanism comprising a revoluble element. of driving; mechanism therefor comprising a continuously driven member adapted to be opera ada ted to be controlled by the machine the per ormance of which said apparatusindicates, for effecting an'operative connection tively connected with said revoluble element and normally engaging said member to minimize lost motion in said connection with a sliding contact, and means adapted to be controlled by the machine the performance of which said apparatus indicates, for etfeoting said operative connection between said revoluble element and, said continuously driven member.

2. In apparatus of the character described, the combination with indicating mechanism, of driving mechanism therefor comprising a continuously driven gea.r,fmeans for normally holding said gear in sliding contact with said indicating mechanism, and means,

adapted to be controlled by the machine the per ormance of which said apparatus indicates, for effecting an operative connection between said indicating and driving mechanisms.

3. In apparatus of the character described,

the combination with indicating mechanism,

of driving mechanism" therefor comprising a continuously driven gear, a s ring for normally holding saidgear in siding contactwith said indicating mechanism, and means,

between said indicating and driving mecha nisms.

by the machine the 'performanceof which. said apparatus indicates, for efiecting an operative connection between. said indicating and driving mechanisms.

5. In apparatus of the, character I 45* the combination with indicating mechanism, a

of driving mechanism there-for comprising a continuously driven gear, means for normally holding said gear in sliding contact with said indicating mechanism duringthe inactive period of the same, and electro-magnetic means, adapted to be controlled by the operation of thema-chine the performance of which said apparatus indicates,"for efiectin a drivin connection between the said b D v indicating and driving mechanisms.

6. In apparatus of the character described, the combination with indicating mechanism, of driving mechanism therefor comprising a continuously driven gear, means for normally holding said] gear in sliding contact with said indicating mechanism during the inactive period of the same, and electromagnetic means, adapted to be energized by the active operation of the machine the performance of which the apparatus indicates,

for efiecting a driving connect-ion between the said indicating and driving mechanisms.

7. In apparatus of the character described, the combination with indicating mechanism,

1 of driving mechanism therefor comprising a train of continuously driven gears, means for normally holding one gear of said train in sliding contact with said indicating mechanism during the inactive) period of the same, and electro-magnetic means, adapted to be ener ized by the active operation of the machine 51c performance of which, said apnection between the-said indicating and driving mechanisms. P i

8, In apparatus of the character described, the combination with indicating mechanism of driving mechanism therefor comprising a continuously driven magnetizable gear normally held in sliding engagement with said indicating mechanism, and an electro-magnet, adapted to be ,ener 'zedthrough the agency of the machine t e'performance of which said apparatus indicates, to efi'ect an operative engagement betwecn said driving and indicating mechanisms.

paratus indicates, for effecting a driving cona 9. In apparatus of the character described, i

the combination with-indicating mechanism, of driving mechanism therefor comprising a continuously driven train of gears, one of said gears beingmagnetizable and normally slidably engaging said indicating ihechanism, and an electro-magnetladapted to be energized through the agency of the machine the performance of which said apparatus indicates, to effect an operative engagement between said magnetizablegear and indi- 'cating mechanism. a

1 0.7 In apparatus of the character descrlbed, an indicating unit comprising a. continuously movable gear, a revoluble indicatingelement having a normal sliding engage ment' with said continuously movable. gear,- and an electro-magnet which when energized effects an operative engagement between said gear and indicating element.

1 11. In, apparatus of the character -described, an indicating unifl, com rising a Ill) continuously movable, magnetizab e gear, a

revoluble indicating element having a normal sliding engagement withsaid continuously movable gear, and an electro-magnet whichwhen energized eifects anxoperative engagement between said gear and indicating'element. 1

'12-. In apparatus of the character de-- scribed, an indicating unit comprising a continuously movable, magnetizable gear. a revoluble indicating element having a normal.

slidingengagement with said continuously v movable gear and provided with a dial having graduations theieon. and an electromagnet which when energized effects an operative engagement between said gear and indicating element.

1 tween said gear and indicating element, and

indicating element. r 17. In apparatus of the character'defl scribed, an indicating unit comprising a1 continuously driven gear, and1a" revoluljle' indicating element comprising afshell jand 7 an electric coil carried thereby which to-' fgether constitute an electro-magnet,which;-

when energized, effects a clutching en'gagesaid gear and indicating ele-; ment. 1 18. In apparatus of the character deascribed, an indicating unitcomprising a continuously driven gear, and a revolubla indicating element comprising an annular 13.'In apparatus of the character de-- scribed, an indicating unit comprising a continuously movable gear, a revoluble indicating element having a normal sliding en- 14. In apparatus of the character de-' scribed,; an indicating unit comprising a continuously movable. gear,a revoluble 1ndicating element having graduations corresponding' to fractions of anhour thereon and adapted to normally slidably engage said continuously'movable gear to. take up lost motion, an electro-magnet which when on ergized effects an operative engagement bea second revoluble indicating element having graduations to indicate fixed time periods and having an intermittent operative connection with said first mentioned indicating elementwvhereby the said second revoluble indicating element is rotated the amplitude of one graduation thereon for each complete revolution of said first mentioned revoluble indicting element.

15. In apparatus of the character described, a visual indicating unit comprising a revoluble indicating element, driving mechanism therefor com rising a continu.-.

ously'driven gear adapte vto be clutched to saidindicating element, and an electro magnet for effecting the said clutching engagement between said continuously driven gear and indicating element.

16. In apparatus of the [Qharacter dea tscribed, a visual indicating unitcom )rising a. 'revoluble indicating "ele'm'ent,' riving mechanism therefor comprising a continuously driven gear adaptedqto be clutched to said indicating element, and an electromagnet revolubly supported vby said indi catin element and adapted when energized toe ect the said clutching engagement between said continuously driven gear and merit between element, and means trical connection: for said coil comprising a shell and an electric coil carried thereby which together constitute an eleotro-magnet which, when energized, effects a clutching engagemenflb'etween said gear and the periphery of said shell.

19. In apparatus of the character described, an indicating unit comprising a continuously driven gear, a revoluble indicating element comprising an annular shell and an electric coil carried thereby which together constitute an electro-magnet which, when energized, effects a clutching engagement between said gear and the.

periphery of said shell, and means provid-;

ing an electrical connection for said coil comprising a ring carried by said shell and a spring contact engaging said ring.

20. In apparatus. of ,the character described, an indicating unit comprising a gear and a revoluble indicating element, said element comprising an annular shell and an electric coil carried thereby which together constitute. an electro-magnet adapted, when energized, to effect a clutching engagement between said gear and indicatin 1 element, and means providing an electrica l connection for said coil comprising a spring contact member adapted to engage the periphery of said indicating element. 7

21. In apparatus of the character de scribed, an indicating unit comprising a gear and a revoluble indicating element, saideleine'nt comprising an annular shell and anelectric coil carriedthereby which together constitute an electro-magnet adapt ed when energized to effect a clutching engagement between said gear and 'indicab' ing element, and means providing an electrical connection -for said coil'coniprising a grooved contact-ring fitted on the periph-- cry of said shell, insulation inserted between theshell and ring, and a spring contact having a graphite contacting surface adapted to fit into the groove of said contact wheel.

22. In apparatus of the character de scribed, an indicating unitcomprising a gear and a revoluble indicating element, said element comprising an annular. shell and an electric coil carried thereby which together constitute an electro-magnet adapted when energized to effect a clutching en-' f I gagementbetweensaid gear and indicating .v

grooved'contact-ring fitted on the periphery of said'shell, insulation inserted between the -shell and ring, and a spring contact having a graphite lubricating substance providing ,a contacting surface adapted to fit into the ;-groove' ofsaid contact wheel.

and a revoluble indicating element, said ele- .ment comprising an annular shell and an roviding an ,elecmeager means provii said coil'jfcomprismgl afgroov y fi smi h p ip c yi a ns l r "tion i-nsertedqbetwen{the. sh 111 and ragg relatively gflexible Js'pring' contact: having;{, 'agraphite lubricatingsubstflncegpr sin contact-in ysurface; adapted a to-"fit into, the groove; o J said icontacthwheel, anda heavier spring adapted t'o 'bear against the contact ,1 end "of said first mentioned spring;

24;. ,I'n fapparatus of; thefchar'acter def scribed, the combination with t a; fixed support; oi-"chart mechanism thereomamovable support, driving mechanism 'on s'ai'd movable support, a pluralityiof separately removable j ;visual indicating units cai'ried ..on said novable'jsupport and engaged with said driving mechanism, and meansio'rimovingfsaidmov able support to effect anioperat ve engage- -mnt of the driving mechanism-1" with said chant mechanisms. p v

25.; In. apparatus 'Offth}! character; described,i the combination with I a fixed-i'support, of chartmechanism thereon, a movable said movable support, a plurality of pivoted marking elements on said movable support, a plurality. of separately removable visual indicat ng units carrie on said movable support and engaged'ewith said driving mechanism, and means for movin saidmovable support to bring said'marking elements into contact with'the chart andto effect an operative engagement of the driving mechanismywith said chart mechanism. i,

26. In apparatus .of the characterlqde scribed, the combinationwith a'-fixed' .s'up port," of chart mechanism thereon,. a movable support, driving mechanism'onsald movable support, a plurality of pivoted "marking elements on said movable support, aplurality of separately 4 removable visual indicating units carried on said movable support and engaged with said driving mechanism and marking elements, and means for moving said movable support to bring said marking elements into contact with the chart and to effect an operative engagement of the driving mechanism with saidrchart mechanism.

27. In apparatus of the character described, the combination with a fixed support, of chart mechanism thereon, a movable support, driving mechanism on said movable support,va plurality of pivoted marking elements on said movable support, a plurality of separately removable visual indicating 'units operatively engaged with said marking elements, each unit comprising a pair of electro-magnets for operating a marking element and for effecting a clutching enga ment of the driving mechanism with the "saidi unitg'andqmeans iorli-movingllfsafd move Ie PP -t to" b ina idamar ins elements rit'o' o t it* withftheichart 'andatolefiect' a ll gfconnection between i"; i'd "driving mechanism "and chart "mechanism. 7

g 23. In 'apparatus ofsfithe" -character defc ibed, thef"combinationTwithf a fixed su portj;""of chart mechanism thereon,.-a movable support,driving mechanism on said movable uPP a Pwe,- m s erti mechan1sm,"and a p urality' of pivoted mark;

in'g' elements carried end-said movable support and adapted to hear I with uniform pressure against the chart.

. 29. 111 apparatusbf the characterlidescribed, "l the'combination.with la fixed so port, of chart mechanism thereon a movab e support, driv ng mechanism on said movable support adapted to give "travel tosaid chart mechanism, a plurality of pi'voted;marking elements carried 4011 I said {movable support and adapted to bearwitli uniform pressure against the chart, and electro-magnets for operatin said marking j'e'lements to." make a .inark; on said-Chara} 30. In iapparatusylof 'the character 'de' scribed, the combination'with ajfixed support, 'o-fa chart mechanism thereon a, movable support, driving mechanism on thejmovjable support adaptedto impart-travel to said chart mechanism'when said movable support is in its forward position and to be disconnected from said chart mechanism when said support is moved to its rear position, a plurality of indicating mechanisms on said movable support, an electro-magnet for each of said indicating mechanisms adaptedto operativelyconnect the same with the driving mechanism, and means" for simultaneously energizing all of said eleetr'o magnets so as to reset the indicatingmechanisms. to {ze o by. reversingsaid drivingme'chanisms.

.31. In apparatus bfigthe, character de scribed, the combination with 'a, fixed. support, of a movable support, drivingv mecha nism onthemovable support, a plurality of indicating mechanisms on saidmovable support; an electro-magnet for each of said indicating mechanisms adapted to operatively connect the same-with the driving mechanism, and means comprising a contact member extending lengthwise of the movable support and contact members for'each of said electro-ma-gnets adapted to engage the first mentioned. contact "member when the Jmovable supportis moved one direction to simultaneously energize all of said electromagnets so as to reset the indicating mechanisms to zero by reversing said driving mechanism. I

32. In apparatus of the character described, the combination with a fixed su port, of a movable support, drivin mec anism thereon,, a plurality of in icating mechanisms on said movable support, an

electrc 'nagnet for each of said indicating mechanisms adapted to operatively connect.

the same with t e driving mechanism, and

means comprising a rounded contact member extending lengt iwiseof the movablesupport and contact members for each of said electro-magnets adapted to engage the said grounded contact member when the movable support is moved in one direction to simultaneously energize all of said electromagnets-so as to reset the indicating mechanisms to zero by revcrsing'said driving mechanism.

33. In apparatus of the character described, the combination with time operated ,--indicating mechanism for indicating the total active time period of a machine performing a serles of active operations, and

' means controlled by the operation of the machine, the performance of. which is being indicated, for giving a visual indication of the'total active operations of said machine during the total time period indicated by said time operated indicating mechanism.

34. In apparatus of the character described the combination with time operated indicating mechanism for indicating the total active time period of ainachine per forming a series of active operations, and an electro-magnetically operated counting device controlled by the operation of the machine, the performance of which is being inby the operation of the machine whose per formance is being indicated and adapted when energized to indicate one active operation of said machine.

36. In apparatus of the character described, the combination with time operated. driving mechanism, of a visual indicating} unit, an electro-magnet for effecting an operatlve connection. between said driving mechanlsm and unit, a circuit making. and

- breaking device operated by the productive operation of the machine whose performance is belngindlcated to close an electric circuit to energize said magnet and set said indicating unlt into operation, and a counting device which is operative only when the said indicating unit is operating.

37. In apparatus of the charaCtB 6- scribed, the combination with time operated driving mechanism, of a visual indicating unit, an electro-magnet for effecting an on erative connection between said driving mechanism and unit, a circuit making and breaking device operated by the productive operation of the machine whose performance is being indicated to close an electric circuit to energize said magnet and set said indicating unit into 0 eration, and a counting device, the operation-of which is controlled by the closing of said circuit making and break ing device, whereby the counting device is operative only when the said indicating unit is operating.

38. In apparatus of the character dc scribed, the combination with indicating mechanism comprising means controlled by the operation of a machine, whereby the pro ductive time period of a series of separate active operations of such machineis indicated, and means controlled by the operation of said machine for indicating the total number of operations included in the pro ductive period indicated by said indicating mechanism.

39. In apparatus of the character described, the combination with indicating mechanism comprising means controlled by the operation of a machine whereby the productive time period covering a plurality of separate operations of such machine is indicated, means controlled by the operation of said machine for recording the separate op erations included in the productive period indicated by said indicating mechanism, and means controlled by the operation of said machine for indicating the total number of said operations.

40. An electrically operated counting device having an operating shaft, a gear on said shaft, a pivoted rack member engaging.

said gear, electromagnetic means for operat -Q ing said rack member comprlslng a fixed electr'omagnet and a pivoted electromagnetic,

secured to said rack and providing an armature for said fixed magnet whereby the Pit oted magnet and said rack are oscillated -whensaid magnets are energized.

41 An electrically operated counting device having an operating shaft, a gear on said shaft, a pivoted rack member engaging said gear, electromagnetic means for operatmg said rack member comprising a fixed .electromagnet having laterally projecting poles, an armature comprising .an electromagnet secured to said rack and adaptedto oscillate toward the poles of said first mentioned magnet when said magnets are energized,

. AUSTINC. JOHNSON. I 

